Re: Indexes growing continuously

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Mike Mascari <mascarm(at)mascari(dot)com>
Cc: Daniele Orlandi <daniele(at)orlandi(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Indexes growing continuously
Date: 2000-04-04 20:47:19
Message-ID: 200004042047.QAA00150@candle.pha.pa.us
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> > I know I can fix this by recreating the indexes, but I don't know how to
> > do it for a system table and if it's safe.
> >
> > Any hints ?
>
> Unfortunately, this is a bug in PostgreSQL with respect to system
> indexes. You can safely drop/create user indexes, but not system
> ones. The only way to reclaim the space used is to dump/reload
> your database. Under 7.0, I *believe* Hiroshi's REINDEX command
> (please correct me someone if I'm wrong) will allow you to
> reconstruct system indexes, but the root problem still exists...

pg_upgrade will allow this, without dump/reload of data.

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